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Re: [PATCH] net: e1000: check transmit descriptor field values
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From: |
Peter Maydell |
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Subject: |
Re: [PATCH] net: e1000: check transmit descriptor field values |
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Date: |
Fri, 19 Feb 2021 10:27:29 +0000 |
On Fri, 19 Feb 2021 at 03:06, Alexander Bulekov <alxndr@bu.edu> wrote:
>
> On 210210 2022, P J P wrote:
> > From: Prasad J Pandit <pjp@fedoraproject.org>
> >
> > While processing transmit (tx) descriptors in process_tx_desc()
> > various descriptor fields are not checked properly. This may lead
> > to infinite loop like issue. Add checks to avoid them.
> >
>
> +CC Peter Maydell
>
> Is this a DMA re-entracy/stack-overflow issue? IIRC the plan was to have
> some sort of wider fix for these issues. There are bunch of these
> reports floating around at this point, I believe.
I have no idea, because the commit message for this patch does
not describe the failure in any detail at all and has no
links to any bug report or test case for the failures it
claims to be fixing...
-- PMM